Browsing by Author "Chetelat, Gael"

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    Critical review of the Appropriate Use Criteria for amyloid imaging: Effect on diagnosis and patient care
    (Elsevier, 2016-12-18) Apostolova, Liana G.; Haider, Janelle M.; Goukasian, Naira; Rabinovici, Gil D.; Chetelat, Gael; Ringman, John M.; Kremen, Sarah; Grill, Joshua; Restrepo, Lucas; Mendez, Mario F.; Silverman, Daniel H.; Department of Neurology, IU School of Medicine
    INTRODUCTION: The utility of the Appropriate Use Criteria (AUC) for amyloid imaging is not established. METHODS: Fifty-three cognitively impaired patients with clinical F18-florbetapir imaging were classified as early and late onset, as well as AUC-consistent or AUC-inconsistent. Chi-square statistics and t test were used to compare demographic characteristics and clinical outcomes as appropriate. RESULTS: Early-onset patients were more likely to be amyloid positive. Change in diagnosis was more frequent in late-onset cases. Change in therapy was more common in early-onset cases. AUC-consistent and AUC-inconsistent cases had comparable rates of amyloid positivity. We saw no difference in the rate of treatment changes in the AUC-consistent group as opposed to the AUC-inconsistent group. DISCUSSION: The primary role of amyloid imaging in the early-onset group was to confirm the clinically suspected etiology, and in the late-onset group in detecting amyloid-negative cases. The rate of therapeutic changes was significantly greater in the early-onset cases.